+ let offs: [usize; 3] = [
+ buf.get_info().get_format().get_chromaton(0).unwrap().get_offset() as usize,
+ buf.get_info().get_format().get_chromaton(1).unwrap().get_offset() as usize,
+ buf.get_info().get_format().get_chromaton(2).unwrap().get_offset() as usize
+ ];